
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X520SCA is a genuine double acting round-body mini air cylinder with a Ø25mm bore and 520mm stroke, 1/8" air ports and a stainless-steel barrel and rod for mildly corrosive environments. Its ISO 6432 mounting interface makes it a compact drop-in for standard mini-cylinder fixtures.
Delivering 245.3 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles demanding linear motion. The 520 mm stroke is a non-standard, made-to-order length exceeding the 500 mm maximum standard for this bore, built specifically for extended reach. Its riveted stainless barrel and rod shrug off mild corrosion, giving it a real edge over painted alternatives in damp or washdown environments.
Equipped with a CA pivot clevis back cover and an integrated piston magnet, it supports CMSG, DMSG, and EMSG switches for position sensing. Operating at 30-800 mm/s on a 1/8" port, it yields a practical safe working load of roughly 147 N. For vertical lifts, plan for moving about 12.5 kg to maintain a safe 2:1 margin.
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X520SCA |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 520 mm |
| Acting type | Double acting |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Fixed TPU bumper pads |
| Max standard stroke | Up to 500 mm |
Specifications follow the official AirTAC MI/MIC (ISO 6432) datasheet. Barrel & rod: stainless steel (round-body, riveted construction). Thread options: PT (blank) / G.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 245 N | 206 N |
| 0.7 MPa | 344 N | 289 N |
| Max (@1.0 MPa) | 50 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×520 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
MI-family variants: MI / MIC (double acting ±cushion), MSI / MTI (single acting push / pull), MID / MICD (double rod ±cushion), MIJ / MICJ (adjustable stroke ±cushion). Back covers CA / U / R / CM. Mounting LB / FA / SDB / TC.
Uses the 520 mm stroke to shove heavy cardboard cartons between conveyor belts in packaging lines, utilizing the 245.3 N push force.
Deploys the CA pivot clevis to maintain fabric tension across wide industrial looms, benefiting from the stainless build in humid dyeing areas.
Lifts approximately 12.5 kg component trays vertically between warehouse tiers, safely operating within a 2:1 load margin at 0.5 MPa.
When sizing this actuator, consider the neighboring bores: stepping down to a Ø20 provides 157.0 N push at 0.5 MPa, while a larger Ø32 offers 402.2 N. Because this 520 mm stroke exceeds the 500 mm standard, carefully account for rod bending and side-load deflection over the extended travel. The built-in magnet enables CMSG, DMSG, and EMSG sensors, while the CA rear cover supplies a pivot mount.
Remember that fixed TPU bumper pads only decelerate the stroke end; they do not function as an adjustable air cushion. Furthermore, a standard double-acting cylinder drifts when air is lost or the valve centers, so install an external rod lock or pilot-operated check valve if your application requires suspended load holding.
Quick checklist
This Ø25 bore cylinder features a 1/8" port and generates 245.3 N push and 206.1 N pull at 0.5 MPa. At 0.7 MPa, it yields 343.4 N push and 288.5 N pull, with a theoretical maximum of 50 kgf at 1.0 MPa.
Yes, the Ø25 bore utilizes the ISO 6432 mounting interface for standard mini-cylinder brackets. The -S suffix denotes a built-in piston magnet for CMSG, DMSG, or EMSG switches, and the CA back cover provides a pivot clevis.
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